Patents by Inventor Tatsuya MASUHISA

Tatsuya MASUHISA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12134300
    Abstract: A heat control device is provided in a vehicle including a first thermal circuit that circulates a coolant and a second thermal circuit that circulates a refrigerant while changing the state of the refrigerant and is able to exchange heat with the first thermal circuit. When there is a heat discharge request from the second thermal circuit, the heat control device includes a determination unit configured to determine an amount of operation of each of a plurality of units which are used to discharge heat such that the heat discharge request is satisfied and the sum of power consumption values of the plurality of units is minimized.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: November 5, 2024
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Ryuichi Wada, Tatsuya Masuhisa, Nobukazu Kuribayashi, Shinsaku Isomura
  • Patent number: 12109867
    Abstract: A thermal request mediating device (1) that is mounted in a vehicle including a first thermal circuit (LT) and a second thermal circuit (RE) configured to exchange heat with the first thermal circuit, the thermal request mediating device includes: a discharged heat amount acquiring unit configured to requested amounts of discharged heat of the first and second thermal circuits; and a mediation unit configured to determine amounts of discharged heat allowable for the first thermal circuit and the second thermal circuit, and increase the amount of discharged heat allowable for the first thermal circuit and decrease the amount of discharged heat allowable for the second thermal circuit as the first requested amount of discharged heat increases when the sum of the amounts of discharged heat of the first and second thermal circuits exceeds the maximum amount of dischargeable heat.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: October 8, 2024
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Ryuichi Wada, Tatsuya Masuhisa, Nobukazu Kuribayashi, Shinsaku Isomura
  • Patent number: 11707966
    Abstract: A device installed in a vehicle including a first thermal circuit, a second thermal circuit, and a third thermal circuit, is configured to arbitrate a heat request of the first thermal circuit, a heat request of the second thermal circuit, and a heat request of the third thermal circuit. The device is configured to acquire a heat absorption amount requested by the first thermal circuit, the second thermal circuit, and the third thermal circuit, and configured to set, as a target value of a transfer heat amount in which heat exchange is performed between the second thermal circuit and the third thermal circuit, a larger one of a heat dissipation amount requested by the second thermal circuit and a heat amount difference in which a heat dissipation amount requested by the third thermal circuit is subtracted from a heat absorption amount requested by the first thermal circuit.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: July 25, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Takayuki Kawabe, Tatsuya Masuhisa, Nobukazu Kuribayashi, Shinsaku Isomura
  • Patent number: 11707968
    Abstract: A thermal request mediating device includes a calculation unit configured to calculate amounts of heat for thermal circuits, a mediation unit configured to determine amounts of absorbed heat or amounts of discharged heat which are allocated to the thermal circuits based on amounts of heat transferable between the thermal circuits, and a distribution unit configured to distribute amounts of absorbed heat or amounts of discharged heat to units which are included in each thermal circuit based on the determined amounts of absorbed heat or amounts of discharged heat.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: July 25, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryuichi Wada, Tatsuya Masuhisa
  • Publication number: 20220176771
    Abstract: A thermal request mediating device (1) that is mounted in a vehicle including a first thermal circuit (LT) and a second thermal circuit (RE) configured to exchange heat with the first thermal circuit, the thermal request mediating device includes: a discharged heat amount acquiring unit configured to requested amounts of discharged heat of the first and second thermal circuits; and a mediation unit configured to determine amounts of discharged heat allowable for the first thermal circuit and the second thermal circuit, and increase the amount of discharged heat allowable for the first thermal circuit and decrease the amount of discharged heat allowable for the second thermal circuit as the first requested amount of discharged heat increases when the sum of the amounts of discharged heat of the first and second thermal circuits exceeds the maximum amount of dischargeable heat.
    Type: Application
    Filed: March 13, 2020
    Publication date: June 9, 2022
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Ryuichi WADA, Tatsuya MASUHISA, Nobukazu KURIBAYASHI, Shinsaku ISOMURA
  • Publication number: 20220161629
    Abstract: A heat control device is provided in a vehicle including a first thermal circuit that circulates a coolant and a second thermal circuit that circulates a refrigerant while changing the state of the refrigerant and is able to exchange heat with the first thermal circuit. When there is a heat discharge request from the second thermal circuit, the heat control device includes a determination unit configured to determine an amount of operation of each of a plurality of units which are used to discharge heat such that the heat discharge request is satisfied and the sum of power consumption values of the plurality of units is minimized.
    Type: Application
    Filed: March 23, 2020
    Publication date: May 26, 2022
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Ryuichi WADA, Tatsuya MASUHISA, Nobukazu KURIBAYASHI, Shinsaku ISOMURA
  • Publication number: 20210387504
    Abstract: A thermal request mediating device includes a calculation unit configured to calculate amounts of heat for thermal circuits, a mediation unit configured to determine amounts of absorbed heat or amounts of discharged heat which are allocated to the thermal circuits based on amounts of heat transferable between the thermal circuits, and a distribution unit configured to distribute amounts of absorbed heat or amounts of discharged heat to units which are included in each thermal circuit based on the determined amounts of absorbed heat or amounts of discharged heat.
    Type: Application
    Filed: August 30, 2021
    Publication date: December 16, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryuichi WADA, Tatsuya MASUHISA
  • Patent number: 11135900
    Abstract: A thermal request mediating device includes a calculation unit configured to calculate amounts of heat for thermal circuits, a mediation unit configured to determine amounts of absorbed heat or amounts of discharged heat which are allocated to the thermal circuits based on amounts of heat transferable between the thermal circuits, and a distribution unit configured to distribute amounts of absorbed heat or amounts of discharged heat to units which are included in each thermal circuit based on the determined amounts of absorbed heat or amounts of discharged heat.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: October 5, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryuichi Wada, Tatsuya Masuhisa
  • Publication number: 20210300144
    Abstract: A device installed in a vehicle including a first thermal circuit, a second thermal circuit, and a third thermal circuit, is configured to arbitrate a heat request of the first thermal circuit, a heat request of the second thermal circuit, and a heat request of the third thermal circuit. The device is configured to acquire a heat absorption amount requested by the first thermal circuit, the second thermal circuit, and the third thermal circuit, and configured to set, as a target value of a transfer heat amount in which heat exchange is performed between the second thermal circuit and the third thermal circuit, a larger one of a heat dissipation amount requested by the second thermal circuit and a heat amount difference in which a heat dissipation amount requested by the third thermal circuit is subtracted from a heat absorption amount requested by the first thermal circuit.
    Type: Application
    Filed: February 10, 2021
    Publication date: September 30, 2021
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Takayuki KAWABE, Tatsuya MASUHISA, Nobukazu KURIBAYASHI, Shinsaku ISOMURA
  • Publication number: 20200298661
    Abstract: A thermal request mediating device includes a calculation unit configured to calculate amounts of heat for thermal circuits, a mediation unit configured to determine amounts of absorbed heat or amounts of discharged heat which are allocated to the thermal circuits based on amounts of heat transferable between the thermal circuits, and a distribution unit configured to distribute amounts of absorbed heat or amounts of discharged heat to units which are included in each thermal circuit based on the determined amounts of absorbed heat or amounts of discharged heat.
    Type: Application
    Filed: March 4, 2020
    Publication date: September 24, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryuichi WADA, Tatsuya MASUHISA
  • Publication number: 20180252144
    Abstract: A cooling control device includes a coolant pump being driven at an internal combustion engine to supply a coolant of the internal combustion engine, a heat exchanger being provided at each of plural flow paths that are formed in parallel to one another, a flow amount control valve controlling the coolant being supplied to the plural flow paths, and a control portion controlling the flow amount control valve. The control portion performs a control in a first supply mode in which the coolant is supplied to a first flow path, and a second supply mode in which the coolant is supplied to a second flow path during a supply of the coolant to the first flow path. The control portion operates a switching control shifting to the second supply mode temporarily in a state of being in the first supply mode, and returning to the first supply mode.
    Type: Application
    Filed: September 8, 2016
    Publication date: September 6, 2018
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Kazuyoshi SHIMATANI, Masahiro YOSHIDA, Hirotaka WATANABE, Tatsuya MASUHISA
  • Publication number: 20170089251
    Abstract: A cooling control device includes: a cooling liquid pump whose rotational speed is set in accordance with a rotational speed of an engine; a cooling flow path and a heat exchanger which cool cooling liquid discharged from the engine; a flow rate control valve which is provided in the cooling flow path, changes an opening degree by driving a motor, and adjusts a flow rate of the cooling liquid; and a control portion which feedback-controls the opening degree of the flow rate control valve based on a difference between a temperature of the cooling liquid and a target temperature of the cooling liquid, and corrects a gain of the feedback control in accordance with the rotational speed of the engine.
    Type: Application
    Filed: September 30, 2016
    Publication date: March 30, 2017
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Kazuyoshi SHIMATANI, Masahiro YOSHIDA, Hirotaka WATANABE, Tatsuya MASUHISA